14k Gold Cushion Checkerboard Cut Gemstone Pendant Necklace (8mm) Classic and versatile gemstone pendant, ready for anything the day brings. Pendant necklace feature 8mm Peridot center stone. High polished 14k Yellow Gold four prong setting with 18 inch 18 inch box chain. Peridot it August's birthstone. The natural properties and composition of mined gemstones define the unique beauty of each piece. The image may show slight differences to the actual stone in color and texture.